1/7 = 0.1429
3/7 = 0.4286
5/15 = 0.3333
Add those decimals together.
Btw-- I didn't use fractions because the metric system is based on decimals, not fractions.
marlene has 3 pieces of lace each measuring 1/7 meter, 5/15 meter and 3/7 meter. How long are pieces of lace put together?
1 answer